Pump.



' PATENTED MAY 26. 1903.

K. s. GEiGER.

PUMP.

APPLICATION FILED FEB. 7, 1903;

10 MODEL.

35 abbo'anel o MW S UNTTiED STATES Patented May 26, 1903.

PATENT OFFICE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 729,156, dated May 26,1903.

Application filed February 7, 1903. Serial No. 142,370. (No model.)

To (oZZ whom it may concern.-

Be it known that I, KREAMER S. GEIGER, a citizen of the United States,residing at Birds? boro, in the county of Berks and State ofPennsylvania, have invented certain new and useful Improvements inPumps; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in pumps; and the object is toprovide a device for use more particularly in forcing sediment and otherforeign substances from the drainpipes leading from washbasins,bath-tubs, 850.

The invention consists of a casing having an air-chamber around itslower end provided with suitable valves and a plunger operating insideof said casing.

The invention is fully described in the following specification andclearly shown in the accompanying drawing, which illustrates my devicein vertical section.

The casing 1 is circular in cross-section, has an open top, and hasformed. around its lower edge a flaring projection 2 of. suitablepliable material, such as sheet rubber. Around the casing 1 at its lowerend, immediately above said projection 2 2, is formed a chamber 3 bymeans of a supplemental casing 3, having two openings 4 therein directlyopposite each other,which openings are closed by means of valves 5 fromthe inside. The lower end of the casing 1 is formed with openings 6,which register with the said openings 4, and it also has two additionalopenings 6 midway between the said openings 6, making four equidistantopenings therein: These four openings in the casing l are not closed byvalves, as are the openings 4; but they all communicate with the chamber3.

A plunger 7 fits snugly in the casing 1, moves freely therein, and isprovided with a rod 8 and suitable handle 9.

When the device is inserted in a basin containing a sufficient quantityof water to cover the valve-openin gs 4, the plunger is drawn up,sucking the water into the casing through the openings 4, 6, and 6, andwhen the plunger is returned the valves 5 will close the said openings 4and the water and air will be forced into the drain-pipe over which thedevice has been placed. The pliable flaring piece 2 will with a littlehand-pressure on top of the casing insure an air-tight connection whilethe plunger is being operated.

The device may be advantageously used in opening drain-pipes of allkinds that have become clogged with sediment or other foreignsubstances.

Having thus fully described the invention, what I claim, and desire tosecure by Letters Patent, is-

A force-pump comprising an open-top casing 1, a pliable flaringprojection 2 secured to its lower edge, a supplemental casing 3, achamber 3 formed around the lower end of said casing by means of saidsupplemental casing 3 valve-openings 4 forming communication between theoutside and the inside of the chamber 3, openings 6 and 6 in thecasi'ngl forming a means of communication between the chamber:3 and theinside of the casing 1, and a plunger 7 located and adapted to movefreely in said casing, all substantially as and for the purpose setforth.

In testimony whereof I affix my signature in presence of two Witnesses.

KREAMER S. GEIGER;

Witnesses:

J noon M. PRUTZMAN, CLIFTON O. SANDS.

